Sonar Throwback: Reginald Fessenden and the Fathometer
![](https://www.rfcafe.com/references/radio-craft/images3/Reginald-A-Fessenden-radio-craft-january-1930.jpg)
Men Who Made Radio: Reginald A. Fessenden, January 1930 Radio-Craft - RF Cafe
Fun Fact Friday! The radio sonar is invented by Reginald Fessenden on this day in 1913.
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![](https://uselessinformation.org/wp-content/uploads/2022/03/Fessenden-Wireless-Telegraph-System.jpg)
The Father of Voice Radio - Reginald Fessenden - Podcast #169
Marine Electronics for Boats, Boating Electronics
![](https://images.interestingengineering.com/images/JANUARY/Reginald_Fessenden_plaque.jpg)
Reginald Fessenden: The Father of Radiotelephony - Interesting Engineering
![](https://www.sciencehistory.org/wp-content/uploads/2023/04/robert_williams_with_oscillator_cropped-1024x654.jpeg)
Reginald Fessenden and the Invention of Sonar
Reginald Fessenden: What If Sound Waves Were Continuous Like Ripples on a Lake?
Best Boating and Fishing Electronics for Visual Navigation
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![](https://cdn.britannica.com/09/152009-050-0D5CCDC5/coworkers-Reginald-Fessenden-radio-station-Brant-Rock-1906.jpg)
Reginald Aubrey Fessenden, Canadian Scientist & Inventor
![](https://cdn.britannica.com/95/151195-131-77ACB0EC/Jack-Brown-movie-stars-Lauren-Bacall-Humphrey.jpg?w=200&h=200&c=crop)
Reginald Aubrey Fessenden, Canadian Scientist & Inventor
![](http://www.radiocom.net/Fessenden/tower3.gif)
World's first radio voice broadcast from Mass. coast in 1906
![](https://citizendium.org/wiki/images/6/60/Fessenden.jpg)
Reginald Fessenden - Citizendium
![](https://www.sciencehistory.org/wp-content/uploads/2023/04/mass_lighthouse_map_1898_cropped_horiz2-1024x676.jpg)
Reginald Fessenden and the Invention of Sonar